Add project scaffold

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

CHANGELOG.md

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+# Changelog
+
+## 2026-11-11
+- Initial RP3+ setup: Obtainium list (7 apps) and debloat restore script.

README.md

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 ## Files
 
 - `obtainium-rp3.json`: Obtainium import list (Obtainium > Import/Export > Obtainium Import).
-- `rp3-restore.sh`: reinstalls the 32 stock packages that were removed. Run with `adb` connected.
+- `scripts/rp3-restore.sh`: reinstalls the 32 stock packages that were removed. Run with `adb` connected.
 
 ## Obtainium apps
 

TODO.md

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+# TODO
+
+- Confirm the Obtainium import works on the handheld.